Grain-separator



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GRAIN SEPARATM. (Appumioxi med Apr. 4, 199s.)

2 Sheets-Sheet I.

(No Model.)

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/N VEN 70H No. 626,705. Patented June I3, |899. HL E. KGGH.

GBAEN SEPARATUR.

(Mlibaton led Apr. 4, 1898.) (un Model.) 2 sheets-sheet 2.

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UNITED STATES PATENT OFFICE.

HENRY E. KOCH, OF HARTIGTON, NEBRASKA.

SPECIFICATION forming part of Letters Patent No. 626,705, dated .Tune13, 1899.

Application led April 4, 1898. Serial No. 676,344. (No-model.)

To all whom it may concern.-

Be it known that I, HENRY E. KOCH, a citizen of the United States,residing at I-Iartington, in the county of Cedar-and State of Nebraska,have invented certain new and useful Improvements in Grain-Separators;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the figures of reference markedthereon, which form apart of this 'specification.

This invention relates to such grain-sepa-Y rators as include means forboth screening and winnowing the grain; and it consists in a novelarrangement of a series of sieves or screens having meshes of differentgrades of flneness and in an adjustable fanning or blowing mechanism;Its various features are fully illustrated in the accompanying drawings,in which- Figure 1 is a side elevation, partly in section. Fig. 2 is arear elevation of the invention, and Fig. 3 is a plan of the oscillatorymechanism and its connection with the upper part of the body-frame.

Like characters of reference denote corresponding parts in thedifferentviews.

1 indicates the body-frame of the machine, having leg-perforations 2 2.Y'

The blower 3 is of usual construction, with its exit-opening 10 directedrearward just below the screen-casing. Its fan-shaft 3 ris journaled inadjustable hangers 4 4, which are suspended on the main frame by meansof holes 5 5 to engage pegs b 6, the latter passing through them intothe cross-bars 7 7 on the frame 1. A wind-guide S, covering theblower-exit, is hun g by stout hooks 9 9 to frame 1. Its adjustablefender 11 controls the direction of the air-current. The rear part ofthe blower is supported and rendered adjustable by pegs 13 13, whichpass through holes 12 12 in frame 1 and into correspondingholes in thefan-box.

The screen-case 14, having a front door 14ad to admit the screens, ishung within the frame by pendants 15 15, connected to the upper part offrame 1 and to the lower front part of case 14Joy horizontal pivots 15b15b. This .impelling power.

end of the case is raised'or lowered by inserting the pivots 15b in oneof the higher or lower holes 1e 1e in the upper part of frame 1. Therear part of the case 14is supported on a horizontally-oscillating bar16, connected pivotally at one end to frame 1 and at 'the other end tothe under side of case 14. Along the inner sides of the case 14 areparallel grooves 17 17 to receive the screens. Short recesses 19 19 areformed in the lower rear part of these grooves to hold the chutes 19cand 19(1 immediately below the ends of the screens.

Oscillatory motion is imparted to the screencase by the revolution ofthe shaft 26, furnished with al crank 27 for hand useor withv anygearing suitable for connection with other A central loop-crank 28 onshaft 26, connected by arm 29 to the bottom of case 14, impa-rts areciprocal fore-and-aft motion to said case, and simultaneously the bar16 produces a lateral motion of the rear part of the case. The shaft 3aof the fan in the r`blower is provided with a band-wheel or other meansfor connection with drivingpower. I 4

A hopper 30, p rovided with a gage 81, surmounts the front of the frameabove the screens.

The meshes of the screens are graded from coarsest at the top to nest atthe bottom, each screen being finer than the one above it.

In operation the contents of the hopper are let through upon the firstscreen 20, which catches the straw and coarse waste. This passes overchute 19, unaffected by the airblast, and all the grain and seeds gothrough and fall upon the second screen 21. The largest grain suitablefor seeding is caught on this screen, goes down through the airblast,and falls into a receptacle prepared for it. The grain has been denudedof a great portion of its fibrous covering by its friction with themeshes of the screens, and from this and from other chaffit' isseparated by the air-blast. The smaller grain and seeds pass through tothe third screen 22. This screen is graded to intercept the good grain,which falls into a side chute 19d, which directs it into a receptacle.The screenings then fall upon the fourth screen 23, graded to letthrough mustard, Russian'thistle, and other small seeds and to run offthe common grain ICO for cattle-feed, While millet and other seeds ofthe saine size are run off by the fifth screen 24 and allows themustard-seed to fall through upon the ground.

The screens need never be changed and may be used for cleaning any kindof grain. When the machine is not in use, the screencase, chutes,blower, and Wind-guide, being detachable, are removed and safely housed.

In sett-ing up the machine on uneven groundv stakes 32, with holescorresponding to those in the legs of the machine, are driven in theground and secured by bolts 2f to the legs.

wWhat I claim, and desire to secure by Letz5 ters Patent, is-

l; In a grain-separator, a fan journaled in.

and detachable from vertically-adjustable hangers, said adjustablehangers being pivvotally connected with the body-frame, a series ofholes in the rear parts of said frame, holes HENRY E. KOCH.

Witnesses:

OTTO H. KUHL, W. H. MARTIN.

